Most heating and cooling pumps in commercial buildings operate in a variable speed mode. Today, we take your Monday Morning Minutes to explore the variable …
Three-way and Two-way Control Valve Basics in Hydronic Systems
Centrifugal pumps operate at the intersection of the pump curve and the system curve. Last week we developed the system curve for an example closed …
What’s On a Pump Curve?
Selecting centrifugal pumps for heating, cooling, process, and plumbing systems is easy once you understand how they work and what you are seeing when …
Centrifugal Pumps: How Do They Work?
How a centrifugal pump moves water may seem too basic for engineers and contractors to spend time reading about. However, understanding how a centrifugal pump …
Ion Exchange Water Softener Packaged Solution
There are times when a commercial ion exchange water softener is the preferred solution for hard water in potable water systems. The map above is …
Determining Pump Operating Condition Using the Single Gauge Method for Readouts and Diagnosis
Featuring the Bobco Gauge Package – The Most Accurate Gauge Reading Possible This video discusses: The benefits of using a single gauge kit for pump …
Centrifugal Pumps: Determining Flow Rate Using Amp Readings
We understand that the best way to determine the flow rate of an operating pump is the proper readout of gauges attached to the pump …
Hydronic Systems Pump Minimum Flow Methods
Minimum pump flow rate is critical to the trouble-free operation and longevity of the centrifugal pump. In the last blog we described the use of …
Pump Minimum Flow Using a Cla-Val Back Pressure Valve
Minimum pump flow rate is critical to the trouble-free operation and longevity of the centrifugal pump. The pressure sustaining valve or back pressure valve is …
Pumping From an Atmospheric Tank: Pump and Tank Control (Part 3)
Let me start by wishing everyone a Happy and Prosperous New Year. This blog begins the 14th year of the R. L. Deppmann Monday Morning …